CN203375430U - Anti-wear device of low-temperature economizer - Google Patents
Anti-wear device of low-temperature economizer Download PDFInfo
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- CN203375430U CN203375430U CN201320411431.8U CN201320411431U CN203375430U CN 203375430 U CN203375430 U CN 203375430U CN 201320411431 U CN201320411431 U CN 201320411431U CN 203375430 U CN203375430 U CN 203375430U
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- low
- flue gas
- economizer
- gas
- wear
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Abstract
An anti-wear device of a low-temperature economizer is characterized by comprising a flow deflector (2) and the low-temperature economizer (3), wherein the flow deflector (2) and the low-temperature economizer (3) are arranged between a flue (1) and an electric precipitator. An anti-wear pipe (4) is arranged in front of the low-temperature economizer (3), a finned tube (5) is arranged at back of the low-temperature economizer (3), the anti-wear pipe (4) and the finned tube (5) are parallel to each other and perpendicular to the heading direction of flue gas, and fins (6) are arranged on the finned tube (5); the flow deflector (2) is latticed. The anti-wear device of the low-temperature economizer is additionally installed in front of a flue gas inlet heat exchanger of the flue, can prevent the flue gas from scouring the heat exchanger directly and aggravating equipment wear, and has the functions of guiding the flow direction of the flue gas, evenly distributing the flow rate of the flue gas, preventing concentrated wear of the heat exchanger and prolonging the service life of the heat exchanger greatly. The fins are installed in the direction parallel to the flow direction of the flue gas and are not subjected to component force perpendicular to the surfaces of the fins, and therefore wear of the fins is greatly reduced.
Description
Technical field
The utility model relates to energy-conserving and environment-protective energy recovery technical field, especially a kind of low-level (stack-gas) economizer antiwear device.This low-level (stack-gas) economizer antiwear device is mainly used in power plant's low-level (stack-gas) economizer engineering.
Background technology
At present, domestic power-plant flue gas low-level (stack-gas) economizer is when building, owing in a lot of situations of position limitation, all can flue gas heat-exchange unit being arranged in to flue gas corner, as Fig. 1, when flue gas enters heat exchanger, being oblique angle washes away, impact its when surface by the known heat exchanger fin herein of force analysis in the flue gas ash particles, as Fig. 2, fin installation direction and flow of flue gas direction are tangent, are subject to the component perpendicular to fin surface on fin, under this power effect, the fin wearing and tearing will aggravate, and finally can may wear to heat exchanger tube, and the heat exchanger whole service life is shortened greatly.
The utility model content
The purpose of this utility model is to provide a kind of low-level (stack-gas) economizer antiwear device, to reduce the wearing and tearing of flue gas to equipment.
The technical solution of the utility model is:
A kind of low-level (stack-gas) economizer antiwear device, comprise the air deflector 2 and the low-level (stack-gas) economizer 3 that are arranged between flue 1 and electric cleaner, described low-level (stack-gas) economizer 3 front portions are abrasionproof pipe 4, rear portion is finned tube 5, abrasionproof pipe 4 and finned tube 5 be arranged in parallel, and with the flue gas direction of advance is vertical, arrange, finned tube 5 is provided with fin 6; Air deflector 2 is latticed.
Comprise a plurality of square flow-guiding channels 7 in described air deflector 2, a plurality of square flow-guiding channels 7 form grid-like air deflector 2.
The sectional area of single described flow-guiding channel 7 is 400cm
3to 1600cm
3.
The length of single described flow-guiding channel 7 is 20cm to 40cm.
The beneficial effects of the utility model are:
Before low-level (stack-gas) economizer antiwear device of the present utility model is installed at the flue gas inlet heat exchanger, can prevent that flue gas from directly washing away heat exchanger and causing the equipment attrition aggravation, play the water conservancy diversion flue gas flow direction, be uniformly distributed flue gas flow rate, prevent the heat exchanger concentrated wear.Can greatly improve the heat exchanger time limit in service life.
The fin installation direction parallels with the flow of flue gas direction, on fin, can not be subject to the component perpendicular to fin surface, and the fin wearing and tearing reduce greatly.
The accompanying drawing explanation
Fig. 1 is the arrangement schematic diagram of the flue gas low-temperature economizer of prior art.
Fig. 2 is flue gas flow direction and the fin position relative angle structural representation of prior art.
Fig. 3 is the structural representation of low-level (stack-gas) economizer antiwear device of the present utility model.
Fig. 4 is the internal structure schematic diagram of low-level (stack-gas) economizer of the present utility model.
Fig. 5 is the internal structure schematic diagram of air deflector of the present utility model.
Fig. 6 is the side sectional structure schematic diagram of air deflector of the present utility model.
In figure: 1 is that flue, 2 is that air deflector, 3 is that low-level (stack-gas) economizer, 4 is that abrasionproof pipe, 5 is that finned tube, 6 is that fin, 7 is flow-guiding channel.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
As Fig. 3 to Fig. 6, a kind of low-level (stack-gas) economizer antiwear device, comprise the air deflector 2 and the low-level (stack-gas) economizer 3 that are arranged between flue 1 and electric cleaner, described low-level (stack-gas) economizer 3 front portions are abrasionproof pipe 4, rear portion is finned tube 5, abrasionproof pipe 4 and finned tube 5 be arranged in parallel, and arrange with the flue gas direction of advance is vertical, and finned tube 5 is provided with fin 6; Air deflector 2 is latticed.
Comprise a plurality of square flow-guiding channels 7 in air deflector 2, a plurality of square flow-guiding channels 7 form grid-like air deflector 2.
The sectional area of single described flow-guiding channel 7 is 400cm
3to 1600cm
3.Be preferably 900cm
3.
The length of single described flow-guiding channel 7 is 20cm to 40cm.Be preferably 30cm.
As Fig. 3, Fig. 5, after flue gas enters air deflector 2 along flue 1, in air deflector under the guide function of flow-guiding channel 7, from tilt to flow to change into horizontal flow to, as Fig. 4, flue gas first contacts with abrasionproof pipe 4, after heat exchange cooling is slowed down, then with finned tube 5 and fin 6 contact heat-exchangings, by stopping of abrasionproof pipe 4, the wearing and tearing of flue gas to fin have greatly been reduced, the service life of having improved fin.
Embodiment recited above is described preferred embodiment of the present utility model; not design of the present utility model and scope are limited; do not breaking away under the utility model design concept prerequisite; various modification and improvement that in this area, common engineers and technicians make the technical solution of the utility model; all should fall into protection domain of the present utility model, the technology contents that the utility model is asked for protection all is documented in claims.
Claims (4)
1. a low-level (stack-gas) economizer antiwear device, it is characterized in that comprising the air deflector (2) and the low-level (stack-gas) economizer (3) that are arranged between flue (1) and electric cleaner, described low-level (stack-gas) economizer (3) front portion is abrasionproof pipe (4), rear portion is finned tube (5), abrasionproof pipe (4) and finned tube (5) be arranged in parallel, and with the flue gas direction of advance is vertical, arrange, finned tube (5) is provided with fin (6); Air deflector (2) is latticed.
2. a kind of low-level (stack-gas) economizer antiwear device according to claim 1, is characterized in that in described air deflector (2) comprising a plurality of square flow-guiding channels (7), and a plurality of square flow-guiding channels (7) form grid-like air deflector (2).
3. a kind of low-level (stack-gas) economizer antiwear device according to claim 2, the sectional area that it is characterized in that single described flow-guiding channel (7) is 400cm
2to 1600cm
2.
4. a kind of low-level (stack-gas) economizer antiwear device according to claim 2, the length that it is characterized in that single described flow-guiding channel (7) is 20cm to 40cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320411431.8U CN203375430U (en) | 2013-07-10 | 2013-07-10 | Anti-wear device of low-temperature economizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320411431.8U CN203375430U (en) | 2013-07-10 | 2013-07-10 | Anti-wear device of low-temperature economizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203375430U true CN203375430U (en) | 2014-01-01 |
Family
ID=49837957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320411431.8U Expired - Fee Related CN203375430U (en) | 2013-07-10 | 2013-07-10 | Anti-wear device of low-temperature economizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203375430U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322550A (en) * | 2013-07-10 | 2013-09-25 | 江苏海德节能科技有限公司 | Anti-abrasion device of low temperature coal economizer |
-
2013
- 2013-07-10 CN CN201320411431.8U patent/CN203375430U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322550A (en) * | 2013-07-10 | 2013-09-25 | 江苏海德节能科技有限公司 | Anti-abrasion device of low temperature coal economizer |
| CN103322550B (en) * | 2013-07-10 | 2015-08-19 | 江苏海德节能科技有限公司 | A kind of Anti-abrasion device of low temperature coal economizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20180710 |